织梦列表页 下拉加载内容(最底部附上点击加载再出现内容)

 注意,该功能为列表页下拉加载内容,首页无法使用。

一、首先找到并打开/plus/list.php文件,在里面找到如下代码:

require_once(dirname(__FILE__)."/../include/common.inc.php");
在其代码下面添加如下代码:
//列表页瀑布流无限加载代码
if(isset($_GET['ajax'])){
    $typeid = isset($_GET['typeid']) ? intval($_GET['typeid']): 0;//传递过来的分类ID
    $page = isset($_GET['page']) ? intval($_GET['page']): 0;//页码
    $pagesize = isset($_GET['pagesize']) ? intval($_GET['pagesize']): 15;//每页多少条,也就是一次加载多少条数据
    $start = $page>0 ? ($page-1)*$pagesize : 0;//数据获取的起始位置。即limit条件的第一个参数。
    $typesql = $typeid ? " WHERE typeid=$typeid" : '';//这个是用于首页实现瀑布流加载,因为首页加载数据是无需分类的,所以要加以判断,如果无需
    $total_sql = "SELECT COUNT(id) as num FROM `dede_archives` $typesql ";
    $temp = $dsql->GetOne($total_sql);
    $total = 0;//数据总数
    $load_num =0;
    if(is_array($temp)){
        $load_num= round(($temp['num']-15)/$pagesize);//要加载的次数,因为默认已经加载了
        $total = $temp['num'];
    }
    $sql = "SELECT a.*,t.typedir,t.typename,t.isdefault,t.defaultname,t.namerule,
    t.namerule2,t.ispart, t.moresite,t.siteurl,t.sitepath
    FROM `dede_archives` as a JOIN `dede_arctype` AS t ON a.typeid=t.id $typesql ORDER BY id DESC LIMIT $start,$pagesize";
    $dsql->SetQuery($sql);
    $dsql->Execute('list');
    $statu = 0;//是否有数据,默认没有数据
    $data = array();
    $index = 0;
    while($row = $dsql->GetArray("list"))
    {
	        $row['info'] = $row['info'] = $row['infos'] = cn_substr($row['description'],160);
	        $row['id'] =  $row['id'];
	        $row['filename'] = $row['arcurl'] = GetFileUrl($row['id'],
	        $row['typeid'],$row['senddate'],$row['title'],$row['ismake'],
	        $row['arcrank'],$row['namerule'],$row['typedir'],$row['money'],
	        $row['filename'],$row['moresite'],$row['siteurl'],$row['sitepath']);
	        $row['typeurl'] = GetTypeUrl($row['typeid'],$row['typedir'],
	        $row['isdefault'],$row['defaultname'],$row['ispart'],
	        $row['namerule2'],$row['moresite'],$row['siteurl'],$row['sitepath']);
        if($row['litpic'] == '-' || $row['litpic'] == '')
        {
            $row['litpic'] = $GLOBALS['cfg_cmspath'].'/images/defaultpic.gif';
        }
        if(!preg_match("#^http:\/\/#i", $row['litpic']) &&$GLOBALS['cfg_multi_site'] == 'Y')
        {
            $row['litpic'] = $GLOBALS['cfg_mainsite'].$row['litpic'];
        }
	        $row['picname'] = $row['litpic'];//缩略图
	        //$row['stime'] = GetDateMK($row['pubdate']);
	        $row['stime'] = date('Y-m-d H:i', $row['pubdate']);
	        $row['click'] = $row['click'];
	        $row['typelink'] = "".$row['typename']."";//分类链
	        $row['fulltitle'] = $row['title'];//完整的标题
	        $row['shorttitle'] = $row['shorttitle'];//副标题
	        $row['title'] = cn_substr($row['title'], 80);//截取后的标题
	        $row['url'] = $row['arcurl'];
	        $data[$index] = $row;
	        $index++;
    }
    if(!empty($data)){
        $statu = 1;//有数据
    }
    $result =array('statu'=>$statu,'list'=>$data,'total'=>$total,'load_num'=>$load_num);
    echo json_encode($result);//返回数据
    exit();
}

列表页html模板添加代码
{dede:arclist row='3'}
<div class="listpic" id="listpic"> 
<li class="post"><a href="[field:arcurl/]">[field:title/]</a></li>
</div>
{/dede:arclist}
    
<script type="text/javascript">
var loadConfig = {
url_api:'/plus/list.php',
typeid:{dede:field name="crossid"/},
page:2,
pagesize:6,  //这个就是滑动一次添加几条信息的参数设置
loading : 0,
}
function  loadMoreApply(){
if(loadConfig.loading == 0){
 var typeid = loadConfig.typeid;
 var page = loadConfig.page;
 var pagesize = loadConfig.pagesize;
 var url = loadConfig.url_api,data={ajax:'pullload',typeid:typeid,page:page,pagesize:pagesize};
 var sTop = document.body.scrollTop || document.documentElement.scrollTop, dHeight = $(document).height(), cHeight = document.documentElement.clientHeight;
 console.log(dHeight);
 
 if (sTop + cHeight >= dHeight - cHeight) {
 loadConfig.loading = 1;
function ajax(url, data) {

$.ajax({url: url,data: data,async: false,type: 'GET',dataType: 'json',success: function(data) {
addContent(data);  
}});
}
ajax(url,data);
}
}
}
 function addContent (rs){
if(rs.statu== 1){
var data = rs.list;
var total = rs.total;
var arr=[];
var length = data.length;
for(var i=0;i<length;i++){
arr.push('<li class="post">');
arr.push('<a href="'+data[i].url+'">');
arr.push(data[i].fulltitle);
arr.push('</a>');
arr.push('</li>');
}
$('.listpic').append(arr.join(''));
loadConfig.load_num = rs.load_num;
if(total<loadConfig.page*loadConfig.pagesize || loadConfig.page > loadConfig.load_num){
window.removeEventListener('srcoll',loadMoreApply,false);
}
loadConfig.page++;
loadConfig.loading = 0;
}
}
function pullLoad(){
window.addEventListener('scroll', loadMoreApply, false);
}
pullLoad()
checkMobile();
</script>

上面的织梦模板标签可以与SCRIPT分开放置。

这样网站就实现了下拉加载功能。

修改为点击加载才加载

将页面中使用的js代码里的loadMoreApply函数修改为以下代码
function loadMoreApply() {
    if (loadConfig.loading == 0) {
        var typeid = loadConfig.typeid;
        var page = loadConfig.page;
        var pagesize = loadConfig.pagesize;
        var url = loadConfig.url_api,
        data = {
            ajax: 'pullload',
            typeid: typeid,
            page: page,
            pagesize: pagesize
        };
 
        loadConfig.loading = 1;
        function ajax(url, data) {
 
            $.ajax({
                url: url,
                data: data,
                async: false,
                type: 'GET',
                dataType: 'json',
                success: function(data) {
                    addContent(data);
                }
            });
        }
        ajax(url, data);
    }
}
然后在页面中添加个按钮
<input type="button" name="a" value="加载" onclick="loadMoreApply()">

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